螺栓 規格表
螺栓是機械和建築領域最廣泛使用的緊固件。六角螺栓(KS B 1002)、內六角螺栓、沉頭螺栓、自攻螺釘等不同頭型適用於不同場合。強度等級(4.8、8.8、10.9、12.9)顯著影響許用載荷。碳鋼為標準材料；室外、食品和醫療環境使用不鏽鋼(A2/A4)或特殊鍍層產品。
六角螺栓
Hex Bolt · 16個尺寸
Socket Head Cap Screw
Socket Head Cap Screw · 11個尺寸
沉頭螺栓
Countersunk Bolt · 8個尺寸
Pan Head Screw
Pan Head Screw · 5個尺寸
緊定螺釘
Set Screw · 7個尺寸
吊環螺栓
Eye Bolt · 7個尺寸
U形螺栓
U-Bolt · 9個尺寸
蝶形螺栓
Wing Bolt · 5個尺寸
自攻螺釘
Tapping Screw · 8個尺寸
全螺紋螺栓
Threaded Rod · 9個尺寸
Unified Thread
Unified Thread · 10個尺寸
凸緣螺栓
Hex Flange Bolt · 7個尺寸
常見問題 (FAQ)
What is the clearance hole size for an M10 bolt?
For M10 bolts, 11mm drill is standard. Loose fit: 11.5mm, medium: 11mm, close: 10.5mm.
What is the difference between a hex bolt and a socket head cap screw?
Hex bolts have a hexagonal head tightened with a spanner. Socket head cap screws have a hex socket driven by an Allen key. Socket screws take less space and give a cleaner appearance.
What do bolt strength grades (4.8, 8.8, 10.9) mean?
First digit × 100 = tensile strength (MPa); full value × 10 = yield strength (MPa). Example: grade 8.8 means 800 MPa tensile, 640 MPa yield.